When you are documenting software or processes, visual clarity is essential. Many modern documentation tools have recognized this, and support for Mermaid.js has become widespread. You will find that platforms such as GitHub, MkDocs, GitLab, Notion, and other static site generators allow you to embed Mermaid diagrams directly into your documentation. On GitHub, for example, you can include mermaid code blocks in Markdown files, and the rendered diagrams appear right alongside your text. MkDocs, a popular static site generator for project documentation, offers plugins that automatically render Mermaid diagrams from your Markdown files. This integration streamlines the process of keeping diagrams up to date, since you do not need external image editors or manual diagram exports; everything lives as code within your documentation.

To keep your diagrams effective and your documentation maintainable, follow a few best practices. Always store your diagrams as part of your documentation source files, rather than as separate images. This ensures that updates to the documentation and diagrams remain in sync. Use clear, descriptive labels in your diagrams so that readers can quickly understand the information being presented. When possible, use comments in your Mermaid code blocks to clarify complex logic or relationships. Review diagrams regularly as your project evolves—outdated diagrams can be more confusing than helpful. Finally, take advantage of version control; by keeping your documentation and diagrams in the same repository, you can track changes over time and collaborate more easily with your team.